<?php
namespace app\common\traits\controller;

trait Export {
    protected function exportExcel($expTitle, $expCellName, $expTableData)
    {
        include_once '../vendor/PHPExcel/PHPExcel.php';//方法二
        $xlsTitle = iconv('utf-8', 'gb2312', $expTitle);//文件名称
        $fileName = $expTitle . date('_YmdHis');//or $xlsTitle 文件名称可根据自己情况设定
        $cellNum = count($expCellName);

        //$objPHPExcel = new PHPExcel();//方法一
        $objPHPExcel = new \PHPExcel();//方法二
        $cellName = array('A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'AA', 'AB', 'AC', 'AD', 'AE', 'AF', 'AG', 'AH', 'AI', 'AJ', 'AK', 'AL', 'AM', 'AN', 'AO', 'AP', 'AQ', 'AR', 'AS', 'AT', 'AU', 'AV', 'AW', 'AX', 'AY', 'AZ');
        $objPHPExcel->getActiveSheet()->mergeCells('A1:' . $cellName[$cellNum - 1] . '1');//合并单元格

        foreach ($expTableData as $k => $v) {
            $objPHPExcel->createSheet($k);
            $dataNum = count($v['list']);
            $objPHPExcel->getActiveSheet($k)->mergeCells('A1:' . $cellName[$cellNum - 1] . '1');//合并单元格
//            $objPHPExcel->setActiveSheetIndex($k)->setCellValue('A1', $expTitle . '  导出时间:' . date('Y-m-d H:i:s'));
//            $objPHPExcel->getActiveSheet($k)->setTitle($v['sender']);
            for($i=0;$i<$cellNum;$i++){
                $objPHPExcel->setActiveSheetIndex($k)->setCellValue($cellName[$i].'1', $expCellName[$i][0]);
            }
            for ($i = 0; $i < $cellNum; $i++) {
                $objPHPExcel->setActiveSheetIndex($k)->setCellValue($cellName[$i] . '2', $expCellName[$i][1]);
            }
            // Miscellaneous glyphs, UTF-8
            for ($i = 0; $i < $dataNum; $i++) {
                for ($j = 0; $j < $cellNum; $j++) {
                    $objPHPExcel->getActiveSheet($k)->setCellValue($cellName[$j] . ($i + 3), $v['list'][$i][$expCellName[$j][0]]);
                }
            }
        }
        ob_end_clean();//这一步非常关键，用来清除缓冲区防止导出的excel乱码
        header('pragma:public');
        header('Content-type:application/vnd.ms-excel;charset=utf-8;name="' . $xlsTitle . '.xls"');
        header("Content-Disposition:attachment;filename=$fileName.xls");//"xls"参考下一条备注
        $objWriter = \PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');//"Excel2007"生成2007版本的xlsx，"Excel5"生成2003版本的xls
        $objWriter->save('php://output');
        exit;
    }
}